Electric motor



FIG. 1 is a bottom plan view showing the ornamental design of an electric motor according to the invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a front perspective view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a top plan view thereof.

The broken lines shown represent portions of the electric motor that form no part of the claimed design. 

CLAIM The ornamental design of an electric motor, as shown and described. 